Two-Headed Bull Shark Found in Gulf of Mexico, Scientists Say

Rare discovery made off Florida coast, scientists say bull shark first of its kind

By Brian Hamacher
|  Tuesday, Mar 26, 2013  |  Updated 11:55 AM EDT
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Extremely Graphic Pics: Man-Eating Shark Caught

Michigan State University

The two-headed bull shark

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Beachgoers Keep Watchful Eye on Water After Migrating Sharks Spotted Again

Dozens of sharks were seen Tuesday in the waters off Deerfield Beach, near the line with Hillsboro Beach. Veronica Evans and Tom Evans, who are vacationing in South Florida with their family from Virginia, spoke about it.

RAW VIDEO: Migrating Sharks Seen Again Off Deerfield Beach

Sharks were spotted again in the waters off Deerfield Beach Tuesday – this time near the line with Hillsboro Beach. Thousands of sharks have been seen along South Florida's coastline in recent weeks.
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Sharktopus and Dinoshark may be the products of Hollywood, but a two-headed bull shark found in the Gulf of Mexico is all too real, according to scientists with Florida Keys Community College and Michigan State Community College.

The scientists have confirmed that the shark, discovered in April 2011, is the first of its kind and is a single shark with two heads and not conjoined twins.

"This is certainly one of those interesting and rarely detected phenomena," MSU assistant professor of fisheries and wildlife Michael Wagner said in a statement from the school Monday. "It’s good that we have this documented as part of the world’s natural history, but we’d certainly have to find many more before we could draw any conclusions about what caused this."

Migrating Sharks Seen Again Off Deerfield Beach

The shark was found by a fisherman when he opened the uterus of an adult shark. It died shortly thereafter and was brought to the marine science department at FKCC, where it was then transported to Michigan State.

Wagner and his team discovered two distinct heads, hearts and stomachs, with the rest of the body joining together in the back to form a single tail.

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Creatures found with abnormalities like this usually die shortly after birth, and the two-headed bull shark had little, if any, chance to survive in the wild, Wagner said.

Other species, including blue sharks and tope sharks, have been born with two heads, as well as lizards and snakes, Wagner said.

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